Any reason why it shouldn't be 220, apart from the shape of the area?
If each paver is 6 x 3 then it has an area of 18 square feet. You will need exactly 25 of these to cover an area of 450 square feet.
you would need 10 pavers to cover this area if the pavers are 1x1 ..most pavers are not this large they are usually 2x4. I would recommend buying a couple of extra pavers so that you can have cuts instead of all the pavers being the same size.
144 Get 160 to be safe.
72 Get 80 to be safe.
18" is 1.5', so we can discover the number of square feet in one paver by multiplying 1.5 x 1.5 = 2.25 square feet. To fill an area of 14' x 14', or 196 square feet, you would need 196 / 2.25 = 87 pavers, with room for .11 pavers left over. So to cover it completely, 88 pavers would do the trick.
That will depend on the size of your pavers. You have 22,932 square inches to cover.
If each paver is 6 x 3 then it has an area of 18 square feet. You will need exactly 25 of these to cover an area of 450 square feet.
In theory the answer is 240 tiles but this assumes that the area is "well behaved" and, if not, that you are prepared to use all the offcuts to fill bits in mosaic-style. A shape which in 17 inches wide, for example, will require a lot more pavers.
you would need 10 pavers to cover this area if the pavers are 1x1 ..most pavers are not this large they are usually 2x4. I would recommend buying a couple of extra pavers so that you can have cuts instead of all the pavers being the same size.
144 Get 160 to be safe.
72 Get 80 to be safe.
18" is 1.5', so we can discover the number of square feet in one paver by multiplying 1.5 x 1.5 = 2.25 square feet. To fill an area of 14' x 14', or 196 square feet, you would need 196 / 2.25 = 87 pavers, with room for .11 pavers left over. So to cover it completely, 88 pavers would do the trick.
72 Get 80 to be safe.
4 per foot = 48 sq feet. 192 pavers will cover a 6ft x 8ft area
It is not possible to be sure because the units for the pavers are not specified. Assuming that they are 6 inches by 9 inches, each paver covers 3/8 of a square foot. To cover 195 sq ft, therefore, will require 195*8/3 = 520 pavers. However, this answer assumes the area is "well-behaved". To pave an area with an irregular shape or curved boundaries will require more pavers - unless all the offcuts are used and there is no wastage.
Area
Assuming that there is no wastage, you would require a minimum of 85 pavers. The exact number depends on the shape of the area to be paved, whether or not you are prepared to use offcuts in the form of mosaic and the skill of the person laying the pavers